I currently have a four year old shuttle Pc with a Atlhlon 64 processor and 2GB ram, running XP. It works fine except that's it's beginning to slow down and rather than re-installing XP so that it would spped up, I am considering purchasing Windows 7 and a new solid state drive to load windows. the cost would be approx $350, and a new comparable pc probably costs double that. Is it worth upgraing this 4 yr old pc? I can post my specs and configuration. Thank you.